Advanced Web-developers Package

by Mikhail Kalashnik

18 Add-ons in this Collection

Firebug by Joe Hewitt, Jan Odvarko, others

Rated 5 out of 5 stars 1,649 reviews

2,685,104 users

Firebug integrates with Firefox to put a wealth of development tools at your fingertips while you browse. You can edit, debug, and monitor CSS, HTML, and JavaScript live in any web page...

Greasemonkey by Anthony Lieuallen, Aaron Boodman, others

Rated 4 out of 5 stars 866 reviews

1,621,873 users

Customize the way a web page displays or behaves, by using small bits of JavaScript.

Stylish by Jason Barnabe

Restyle the web with Stylish, a user styles manager. Stylish lets you easily install themes and skins for Google, Facebook, YouTube, Orkut, and many, many other sites. You can even customize Firefox and other programs themselves.

Webpage Screenshot in Firefox (♥♥♥♥♥) by susbox

Rated 5 out of 5 stars 378 reviews

271,153 users

FireShot Webpage Screenshots captures webpage screenshot entirely (see demo: http://bit.ly/RlBQMV)

The screenshot can be quickly annotated and:

+ Uploaded
+ Saved as PDF/PNG/GIF/JPEG/BMP
+ Sent to clipboard
+ Printed
+ E-Mailed
+ Exported

ColorZilla by Alex Sirota

Rated 5 out of 5 stars 284 reviews

292,287 users

Advanced Eyedropper, Color Picker, Gradient Generator and other colorful goodies...

MeasureIt by Kevin Freitas

Rated 4 out of 5 stars 305 reviews

162,358 users

Draw a ruler across any webpage to check the width, height, or alignment of page elements in pixels.

Html Validator by Marc Gueury

HTML Validator is a Mozilla extension that adds HTML validation inside Firefox and Mozilla. The number of errors of a HTML page is seen on the form of an icon

For Firefox 23+, you need 0.958 (under review)
http://users.skynet.be/mgueury/mozilla

Secure Login by Sebastian Tschan

Rated 4 out of 5 stars 282 reviews

65,369 users

Secure Login is an extension for Firefox integrated password manager.

Firesizer by orev

Rated 4 out of 5 stars 117 reviews

39,056 users

Allows you to resize the window to specific dimensions.

NOTE: Users of Firefox 29 and above must install "The Addon Bar" extension to use this, as Firesizer uses the add-on bar that has been removed in Firefox 29.

Firefinder for Firebug by Robert Nyman

Rated 3 out of 5 stars 26 reviews

29,188 users

Finds HTML elements matching chosen CSS selector(s) or XPath expression

Nightly Tester Tools by Automation Development, Tony Mechelynck, others

Rated 4 out of 5 stars 182 reviews

53,988 users

Useful tools for the nightly tester.

Firecookie by Jan Odvarko

Rated 4 out of 5 stars 57 reviews

6,970 users

Firecookie is an extension for Firebug that makes possible to view and manage cookies in your browser

Firecookie is part of Firebug since Firebug 1.10

Custom Buttons by Yan, cubegm, others

Rated 4 out of 5 stars 70 reviews

81,091 users

Gives a possibility to create custom toolbarbuttons...
Collector's Note Toggle Javascript Button (http://xsms.nm.ru/custombuttons/en/)

Image-Show-Hide by Dmitriy Altuhov

Rated 4 out of 5 stars 25 reviews

8,552 users

simply turn on|off images on all web-pages and (optional) autoreload current...

Console² by Philip Chee, zeniko

Rated 5 out of 5 stars 45 reviews

16,162 users

Console² (pronounced Console Squared or Console Two) replaces the JavaScript Console with what could be the next generation Error Console. From v0.5 includes the Console Filter extension previously available separately from the Console² website.
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